[parser] treat MethodDefinitions in ObjectPatterns as SyntaxErrors

test/mjsunit/harmony/regress/regress-4585.js

+// Copyright 2015 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --harmony-destructuring-bind
+
+assertThrows(`for(const { function(){} } = this) {}`, SyntaxError);

[adamk, 2015/12/01 18:27:57]

Can you put these tests in test-parsing instead? That'll give us coverage of the
preparser as well.

+assertThrows(`var { function() {} } = this;`, SyntaxError);

[adamk, 2015/12/01 18:27:57]

Also can you use 'method' instead of 'function'? I realize they parse the same,
but it makes the test a little confusing (looks like a function literal in a
block).

+assertThrows(`for(var { get foo() {} } = this) {}`, SyntaxError);

[adamk, 2015/12/01 18:27:57]

Also add a test for 'set foo(arg)'

+
+// Still OK in other objects
+for (var { name = "" + { toString() { return "test" } } } in { a: 1}) break;
+assertEquals(name, "test");